liquid crystal materials have been used in the development of many types. The structures of these compounds are very stable crystal, the nematic phase temperature range is wide, the viscosity is relatively low. Not only meet the high-definition liquid crystal mixture highlights, low viscosity at 20 ~ 30mPa8226; S (20 ℃) and △ n≈0.15 requirements, and to ensure that the system has good low temperature performance.Precision bearing Biphenyl ring containing liquid crystalline compound of △ n value larger improving steepness active ingredients. Pyrimidine compounds K33 / K11 value is smaller, only about 0.60, in and liquid crystal material formulations are often used to adjust the temperature value of △ n and the sequence number. The dioxane liquid crystalline compound is adjust the "multi-drive" an essential component performance.
e liquid crystal material development originated in 1968, when the United States announced a dynamic scatteringtechnology. However, since the structure does not provide wheel bearing the stability of liquid crystal material, so that they use as a display material is greatly limited. 1971 twisted nematic liquid crystal display after the advent of positive dielectric anisotropy TN liquid crystal material was quickly developed; especially in 1974 relative to the structural stability of the biphenyl eye series of liquid crystal material by GW after Gray and other synthesized to meet the performance requirements at the time of electronic watches, calculators and instrument display devices such as which really formed the industrial era.
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